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NO reduction property of apatite-type La8A2Si6O26 (A = Ca, Sr, Ba) supported Pt catalyst

Paper ID Volume ID Publish Year Pages File Format Full-Text
47004 46455 2011 5 PDF Available
Title
NO reduction property of apatite-type La8A2Si6O26 (A = Ca, Sr, Ba) supported Pt catalyst
Abstract

Apatite-type silicate (La8A2Si6O26 (A = Ca, Sr, Ba)) supported Pt catalysts were prepared and their catalytic activities were investigated for NO reduction. La8A2Si6O26 were obtained by the sol–gel method. Pt/La8A2Si6O26 (A = Ca, Sr, Ba) catalysts loaded with 1 mass% of Pt were prepared by the impregnation method. The maximum NO conversions for C3H6–NO–O2 reaction over Pt/La8A2Si6O26 catalyst were 37%, 41% and 50% for A = Ca, Sr and Ba, respectively. The reduction properties of Pt on the catalysts were evaluated by temperature programmed reduction (TPR). The composition of the apatite-type support affected the reduction property of Pt on the catalyst, resulting in promotion of catalytic activity for C3H6–NO–O2 reaction below 300 °C.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideResearch highlights▶ The composition of support affected the reduction property of Pt on the catalyst. ▶ The oxidized Pt species on fresh catalysts were reduced during C3H6–NO–O2 reaction. ▶ The composition of apatites affected catalytic activity for reactions involving C3H6.

Keywords
Apatite-type silicate; NO reduction; Pt catalyst
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NO reduction property of apatite-type La8A2Si6O26 (A = Ca, Sr, Ba) supported Pt catalyst
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volume 103, Issues 1–2, 14 March 2011, Pages 149–153
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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Price was $35.95
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Price after discount Only $4.95
100% Money Back Guarantee
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